package com.itheima.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.constant.MessageConstant;
import com.itheima.dao.MemberDao;
import com.itheima.dao.OrderDao;
import com.itheima.dao.OrderSettingDao;
import com.itheima.domain.Member;
import com.itheima.domain.Order;
import com.itheima.domain.OrderSetting;
import com.itheima.entity.Result;
import com.itheima.service.OrderService;
import com.itheima.utils.DateUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;
import java.util.Map;

@Service(interfaceClass = OrderService.class)
@Transactional
public class OrderServiceImpl implements OrderService {

    @Autowired
    private MemberDao memberDao;

    @Autowired
    private OrderSettingDao orderSettingDao;

    @Autowired
    private OrderDao orderDao;

    @Override
    public Result order(Map map) throws Exception {
//        1、检查用户所选择的预约日期是否已经提前进行了预约设置，如果没有设置则无法进行 预约
        String orderDate = (String) map.get("orderDate");//获取预约日期
        OrderSetting orderSetting = orderSettingDao.findByOrderDate(orderDate);
        if (orderSetting == null) {
            return new Result(false, MessageConstant.SELECTED_DATE_CANNOT_ORDER);
        }

//        2、检查用户所选择的预约日期是否已经约满，如果已经约满则无法预约
        int number = orderSetting.getNumber();
        int reservations = orderSetting.getReservations();
        if (reservations >= number) {
            return new Result(false, MessageConstant.ORDER_FULL);
        }

//        3、检查用户是否重复预约（同一个用户在同一天预约了同一个套餐），如果是重复预约 则无法完成再次预约
//        4、检查当前用户是否为会员，如果是会员则直接完成预约，如果不是会员则自动完成注 册并进行预约
        String telephone = (String) map.get("telephone");
        Member member = memberDao.findMemberByTel(telephone);

        if (member != null) {
            //检查是否重复预约  判断是否重复的标准:会员id,预约日期,套餐id是否与预约表中已有的记录重合(一个手机号可以注册一个会员)
            Integer memberId = member.getId();//会员id
            Date order_Date = DateUtils.parseString2Date(orderDate);//预约日期
            String setmealId = (String) map.get("setmealId");//套餐id
            Order order = new Order(memberId, order_Date, Integer.parseInt(setmealId));
            List<Order> list = orderDao.findByCondition(order);
            if (list != null && list.size() > 0) {
                //重复预约,返回错误信息
                return new Result(false, MessageConstant.HAS_ORDERED);
            }
        } else {
            //自动为该手机号注册会员,并完成预约
            member = new Member();
            member.setName((String) map.get("name"));
            member.setSex((String) map.get("sex"));
            member.setPhoneNumber(telephone);
            member.setIdCard((String) map.get("idCard"));
            member.setRegTime(new Date());
            memberDao.add(member);
        }

//        5、预约成功，更新当日的已预约人数
        Order order = new Order();
        order.setMemberId(member.getId());//会员id
        order.setOrderDate(DateUtils.parseString2Date(orderDate));//预约日期
        order.setOrderType((String) map.get("orderType"));//预约类型
//        order.setOrderStatus("未到诊");//预约状态
        order.setSetmealId(Integer.parseInt((String) map.get("setmealId")));//套餐id
        orderDao.add(order);

        orderSetting.setReservations(orderSetting.getReservations() + 1);//设置预约人数+1
        orderSettingDao.editReservationsByOrderDate(orderSetting);

        return new Result(true, MessageConstant.ORDER_SUCCESS, order.getId());
    }

    @Override
    public Map findById(Integer id) throws Exception {

        Map map = orderDao.findById4Detail(id);
        if(map != null){
            //处理日期格式
            Date orderDate = (Date) map.get("orderDate");
            map.put("orderDate",DateUtils.parseDate2String(orderDate));
        }
        return map;
    }


}
